6.6-stable review patch. If anyone has any objections, please let me know.
------------------ From: Nirmoy Das <nirm...@nvidia.com> [ Upstream commit c7c31f8dc54aa3c9b2c994b5f1ff7e740a654e97 ] The busy-waiting in `mdelay()` can cause CPU stalls and kernel timeouts during boot. Signed-off-by: Nirmoy Das <nirm...@nvidia.com> Reviewed-by: Thomas Zimmermann <tzimmerm...@suse.de> Tested-by: Carol L Soto cs...@nvidia.com<mailto:cs...@nvidia.com> Fixes: 594e9c04b586 ("drm/ast: Create the driver for ASPEED proprietory Display-Port") Cc: KuoHsiang Chou <kuohsiang_c...@aspeedtech.com> Cc: Thomas Zimmermann <tzimmerm...@suse.de> Cc: Dave Airlie <airl...@redhat.com> Cc: Jocelyn Falempe <jfale...@redhat.com> Cc: dri-devel@lists.freedesktop.org Cc: <sta...@vger.kernel.org> # v5.19+ Signed-off-by: Thomas Zimmermann <tzimmerm...@suse.de> Link: https://lore.kernel.org/r/20250917194346.2905522-1-nirm...@nvidia.com [ Applied change to ast_astdp_read_edid() instead of ast_astdp_read_edid_block() ] Signed-off-by: Sasha Levin <sas...@kernel.org> Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org> --- drivers/gpu/drm/ast/ast_dp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/gpu/drm/ast/ast_dp.c +++ b/drivers/gpu/drm/ast/ast_dp.c @@ -62,7 +62,7 @@ int ast_astdp_read_edid(struct drm_devic * of right-click of mouse. * 2. The Delays are often longer a lot when system resume from S3/S4. */ - mdelay(j+1); + msleep(j + 1); if (!(ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xD1, ASTDP_MCU_FW_EXECUTING) &&
